进入boot/menu.list

或者是

/boot/grub/menu.list

把

————————————————

# You can specify 'saved' instead of a number. In this case, the default entry

# is the entry saved with the command 'savedefault'.

# WARNING: If you are using dmraid do not use 'savedefault' or your

# array will desync and will not let you boot your system.

default  0

————————————————

里的default 0 改成你需要的启动序号,注意空的头要忽略。

例如我的要改成 default 8

_________________________________

title  Ubuntu 8.10, kernel 2.6.27-8-generic

uuid  2f30995d-5523-433c-b3f9-795e4a57ee99

kernel  /vmlinuz-2.6.27-8-generic root=UUID=157eed8d-f367-4536-9b43-4fa688aa85ae ro locale=zh_CN splash vga=795 quiet

initrd  /initrd.img-2.6.27-8-generic

quiet

title  Ubuntu 8.10, kernel 2.6.27-8-generic (recovery mode)

uuid  2f30995d-5523-433c-b3f9-795e4a57ee99

kernel  /vmlinuz-2.6.27-8-generic root=UUID=157eed8d-f367-4536-9b43-4fa688aa85ae ro locale=zh_CN  single

initrd  /initrd.img-2.6.27-8-generic

title  Ubuntu 8.10, kernel 2.6.27-7-generic

uuid  2f30995d-5523-433c-b3f9-795e4a57ee99

kernel  /vmlinuz-2.6.27-7-generic root=UUID=157eed8d-f367-4536-9b43-4fa688aa85ae ro locale=zh_CN splash vga=795 quiet

initrd  /initrd.img-2.6.27-7-generic

quiet

title  Ubuntu 8.10, kernel 2.6.27-7-generic (recovery mode)

uuid  2f30995d-5523-433c-b3f9-795e4a57ee99

kernel  /vmlinuz-2.6.27-7-generic root=UUID=157eed8d-f367-4536-9b43-4fa688aa85ae ro locale=zh_CN  single

initrd  /initrd.img-2.6.27-7-generic

title  Ubuntu 8.10, kernel 2.6.27-3-rt

uuid  2f30995d-5523-433c-b3f9-795e4a57ee99

kernel  /vmlinuz-2.6.27-3-rt root=UUID=157eed8d-f367-4536-9b43-4fa688aa85ae ro locale=zh_CN splash vga=795 quiet

initrd  /initrd.img-2.6.27-3-rt

quiet

title  Ubuntu 8.10, kernel 2.6.27-3-rt (recovery mode)

uuid  2f30995d-5523-433c-b3f9-795e4a57ee99

kernel  /vmlinuz-2.6.27-3-rt root=UUID=157eed8d-f367-4536-9b43-4fa688aa85ae ro locale=zh_CN  single

initrd  /initrd.img-2.6.27-3-rt

title  Ubuntu 8.10, memtest86+

uuid  2f30995d-5523-433c-b3f9-795e4a57ee99

kernel  /memtest86+.bin

quiet

###ENDDEBIANAUTOMAGIC KERNELSLIST

# This is a divider, added to separate the menu items below from theDebian

# ones.

title  Other operating systems:

root

# This entry automatically added by theDebianinstaller for a non-linuxOS

# on /dev/sda1

title  Microsoft WindowsXPProfessional

root  (hd0,0)

savedefault

makeactive

chainloader +1

收工